1) is inseparable
Reason: A horizontal line in the middle of the word "card" divides the word "card" into upper and lower parts. If the upper part is regarded as a shape and the lower part is like the reflection of the upper part in the water, it can be interpreted as inseparable.
(2) connecting the preceding with the following.
Reason: Similarly, a horizontal line in the middle of the word "card" is not only the ending stroke above, but also the beginning stroke below, so it can be interpreted as a connecting link between the preceding and the following.
③ Up and down are one.
(4) can't go up and down.